======================================
| [   12.766520][  T224] softirqs last disabled at (23591): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.766522][  T224] Preemption disabled at:
| [   12.766523][  T224] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.766531][  T224] Tainted: [W]=WARN
[   12.766532][  T224] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.766534][  T224] Call Trace:
[   12.766535][  T224]  <TASK>
[   12.766536][  T224]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.766543][  T224]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.766544][  T224]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.766549][  T224]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.766553][  T224]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.766558][  T224]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.766567][  T224]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.766574][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.766577][  T224]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.766581][  T224]  put_chars (drivers/char/virtio_console.c:1176)
[   12.766583][  T224]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.766585][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.766588][  T224]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.766591][  T224]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.766596][  T224]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.766600][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.766605][  T224]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.766609][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.766613][  T224]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.766617][  T224]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.766619][  T224]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.766622][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.766624][  T224]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.766628][  T224]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.766632][  T224]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.766634][  T224]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.766640][  T224]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.766643][  T224]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.766644][  T224]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.766646][  T224]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.766650][  T224]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.766652][  T224]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.766654][  T224]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.766658][  T224]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.766660][  T224]  ? macsec_exit (drivers/net/macsec.c:4354 (discriminator 1)) macsec
[   12.766664][  T224]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4989 (discriminator 2))
[   12.766668][  T224]  ? macsec_exit (drivers/net/macsec.c:4354 (discriminator 1)) macsec
[   12.766671][  T224]  _printk (kernel/printk/printk.c:2504)
[   12.766675][  T224]  ? snapshot_read.cold (user.c:?)
[   12.766677][  T224]  ? alloc_workqueue_lockdep_map (kernel/workqueue.c:6092)
[   12.766685][  T224] macsec_init (drivers/net/macsec.c:358 (discriminator 1)) macsec
[   12.766688][  T224]  do_one_initcall (init/main.c:1357)
[   12.766691][  T224]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.766696][  T224]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.766698][  T224]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.766704][  T224]  do_init_module (kernel/module/main.c:3117)
[   12.766707][  T224]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.766711][  T224]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.766714][  T224]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.766717][  T224]  load_module (kernel/module/main.c:3593)
[   12.766722][  T224]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   12.766728][  T224]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.766732][  T224]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.766736][  T224]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.766739][  T224]  init_module_from_file (kernel/module/main.c:3790)
[   12.766742][  T224]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.766749][  T224]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.766753][  T224]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.766756][  T224]  idempotent_init_module (kernel/module/main.c:3802)
[   12.766759][  T224]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.766764][  T224]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.766767][  T224]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   12.766772][  T224]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.766774][  T224]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.766778][  T224]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.766781][  T224]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.766783][  T224]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.766785][  T224] RIP: 0033:0x7fe6c44dc37d
[   12.766789][  T224] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   12.766790][  T224] RSP: 002b:00007ffd5b1468d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.766795][  T224] RAX: ffffffffffffffda RBX: 000055bd8998c810 RCX: 00007fe6c44dc37d
[   12.766797][  T224] RDX: 0000000000000000 RSI: 000055bd6b3c3ffd RDI: 0000000000000000
[   12.766798][  T224] RBP: 00007ffd5b146970 R08: 0000000000000000 R09: 0000000000000000
[   12.766799][  T224] R10: 0000000000000000 R11: 0000000000000246 R12: 000055bd6b3c3ffd
[   12.766801][  T224] R13: 000055bd8998c960 R14: 0000000000040000 R15: 0000000000000000
| [   14.161791][  T268] softirqs last disabled at (24021): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.161795][  T268] Preemption disabled at:
| [   14.161795][  T268] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.161804][  T268] Tainted: [W]=WARN
[   14.161805][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.161807][  T268] Call Trace:
[   14.161808][  T268]  <TASK>
[   14.161810][  T268]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.161816][  T268]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.161817][  T268]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.161822][  T268]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.161826][  T268]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.161830][  T268]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   14.161832][  T268]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.161839][  T268]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.161842][  T268]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.161845][  T268]  put_chars (drivers/char/virtio_console.c:1176)
[   14.161848][  T268]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.161850][  T268]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.161855][  T268]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.161863][  T268]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.161866][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.161868][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.161872][  T268]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.161876][  T268]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.161878][  T268]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   14.161881][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.161883][  T268]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.161886][  T268]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.161890][  T268]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.161892][  T268]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.161897][  T268]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.161900][  T268]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.161902][  T268]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.161904][  T268]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   14.161907][  T268]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.161909][  T268]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.161912][  T268]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.161915][  T268]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.161920][  T268]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   14.161923][  T268]  _printk (kernel/printk/printk.c:2504)
[   14.161927][  T268]  ? snapshot_read.cold (user.c:?)
[   14.161933][  T268]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   14.161936][  T268] xfrmi_init (net/xfrm/xfrm_interface_core.c:124) xfrm_interface
[   14.161940][  T268]  do_one_initcall (init/main.c:1357)
[   14.161942][  T268]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   14.161947][  T268]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   14.161949][  T268]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   14.161955][  T268]  do_init_module (kernel/module/main.c:3117)
[   14.161958][  T268]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   14.161962][  T268]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   14.161964][  T268]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   14.161968][  T268]  load_module (kernel/module/main.c:3593)
[   14.161973][  T268]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   14.161978][  T268]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   14.161981][  T268]  ? __ia32_sys_fsconfig (??:?)
[   14.161985][  T268]  ? backing_file_read_iter (fs/backing-file.c:211)
[   14.161989][  T268]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.161992][  T268]  init_module_from_file (kernel/module/main.c:3790)
[   14.161995][  T268]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   14.162002][  T268]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.162005][  T268]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.162008][  T268]  idempotent_init_module (kernel/module/main.c:3802)
[   14.162011][  T268]  ? init_module_from_file (kernel/module/main.c:3791)
[   14.162016][  T268]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   14.162019][  T268]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   14.162024][  T268]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   14.162025][  T268]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.162029][  T268]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.162032][  T268]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.162035][  T268]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.162037][  T268] RIP: 0033:0x7f8c2f54f37d
[   14.162040][  T268] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   14.162042][  T268] RSP: 002b:00007fff78e84278 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   14.162044][  T268] RAX: ffffffffffffffda RBX: 000055ceb7a21810 RCX: 00007f8c2f54f37d
[   14.162046][  T268] RDX: 0000000000000000 RSI: 000055ceb1e35ffd RDI: 0000000000000000
[   14.162047][  T268] RBP: 00007fff78e84310 R08: 0000000000000000 R09: 0000000000000000
[   14.162047][  T268] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ceb1e35ffd
[   14.162048][  T268] R13: 000055ceb7a21970 R14: 0000000000040000 R15: 0000000000000000
| [   18.802439][  T397] softirqs last disabled at (25859): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   18.802442][  T397] Preemption disabled at:
| [   18.802443][  T397] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.802451][  T397] Tainted: [W]=WARN
[   18.802452][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.802453][  T397] Call Trace:
[   18.802455][  T397]  <TASK>
[   18.802456][  T397]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.802462][  T397]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.802464][  T397]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.802468][  T397]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.802472][  T397]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.802477][  T397]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   18.802478][  T397]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.802485][  T397]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.802488][  T397]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.802492][  T397]  put_chars (drivers/char/virtio_console.c:1176)
[   18.802494][  T397]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.802496][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.802499][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.802502][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.802507][  T397]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.802511][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.802516][  T397]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.802519][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.802523][  T397]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.802527][  T397]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.802529][  T397]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   18.802532][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.802534][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.802538][  T397]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.802542][  T397]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.802544][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.802549][  T397]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.802552][  T397]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.802553][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.802555][  T397]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   18.802559][  T397]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.802560][  T397]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.802563][  T397]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.802566][  T397]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.802568][  T397]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   18.802572][  T397]  ? rtnl_link_register (net/core/rtnetlink.c:655)
[   18.802578][  T397]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   18.802587][  T397]  _printk (kernel/printk/printk.c:2504)
[   18.802590][  T397]  ? snapshot_read.cold (user.c:?)
[   18.802596][  T397]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   18.802598][  T397]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   18.802600][  T397] can_dev_init (can-dev.mod.c:?) can_dev
[   18.802605][  T397]  do_one_initcall (init/main.c:1357)
[   18.802608][  T397]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   18.802612][  T397]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   18.802615][  T397]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   18.802621][  T397]  do_init_module (kernel/module/main.c:3117)
[   18.802623][  T397]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.802626][  T397]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   18.802629][  T397]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   18.802632][  T397]  load_module (kernel/module/main.c:3593)
[   18.802637][  T397]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   18.802642][  T397]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   18.802647][  T397]  ? backing_file_read_iter (fs/backing-file.c:211)
[   18.802650][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.802653][  T397]  init_module_from_file (kernel/module/main.c:3790)
[   18.802656][  T397]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   18.802663][  T397]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   18.802666][  T397]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   18.802670][  T397]  idempotent_init_module (kernel/module/main.c:3802)
[   18.802672][  T397]  ? init_module_from_file (kernel/module/main.c:3791)
[   18.802677][  T397]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   18.802680][  T397]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   18.802685][  T397]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   18.802686][  T397]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.802690][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.802693][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.802695][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.802698][  T397] RIP: 0033:0x7f3076bdc37d
[   18.802701][  T397] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   18.802703][  T397] RSP: 002b:00007ffd6a81af48 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   18.802705][  T397] RAX: ffffffffffffffda RBX: 000055e2ea854a50 RCX: 00007f3076bdc37d
[   18.802707][  T397] RDX: 0000000000000000 RSI: 000055e2abc59ffd RDI: 0000000000000000
[   18.802708][  T397] RBP: 00007ffd6a81afe0 R08: 0000000000000000 R09: 0000000000000000
[   18.802709][  T397] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e2abc59ffd


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars